998 lines
30 KiB
Haskell
998 lines
30 KiB
Haskell
{-# LANGUAGE OverloadedStrings #-}
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{-# LANGUAGE DeriveGeneric #-}
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{-# LANGUAGE DeriveAnyClass #-}
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{-# LANGUAGE DuplicateRecordFields #-}
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{-# LANGUAGE LambdaCase #-}
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module ZGoBackend where
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import Config
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import Control.Concurrent (forkIO, threadDelay)
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import Control.Monad
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import Control.Monad.IO.Class
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import Data.Aeson
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import Data.Array
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import qualified Data.Bson as B
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import qualified Data.ByteString as BS
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import Data.Char
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import qualified Data.HashMap.Strict as HM
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import Data.HexString
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import Data.Maybe
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import qualified Data.Scientific as Scientific
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import Data.SecureMem
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import qualified Data.Text as T
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import qualified Data.Text.Encoding as E
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import Data.Text.Encoding.Error (lenientDecode)
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import qualified Data.Text.Lazy as L
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import Data.Time.Clock
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import Data.Time.Clock.POSIX
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import Data.Typeable
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import qualified Data.Vector as V
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import Data.Vector.Internal.Check (doChecks)
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import Data.Word
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import Database.MongoDB
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import Debug.Trace
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import GHC.Generics
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import Item
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import Network.HTTP.Simple
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import Network.HTTP.Types (created201)
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import Network.HTTP.Types.Status
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import Network.Wai.Middleware.Cors
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import Network.Wai.Middleware.HttpAuth
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import Numeric
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import Order
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import Owner
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import Payment
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import System.IO.Unsafe
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import System.Random
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import Test.QuickCheck
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import Test.QuickCheck.Instances
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import Test.QuickCheck.Property (Result(ok))
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import Text.Regex
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import Text.Regex.Base
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import User
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import Web.Scotty
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import Xero
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import ZGoTx
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-- Models for API objects
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-- | A type to model Zcash RPC calls
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data RpcCall =
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RpcCall
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{ jsonrpc :: T.Text
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, callId :: T.Text
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, method :: T.Text
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, parameters :: [Data.Aeson.Value]
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}
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deriving (Show, Generic)
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instance ToJSON RpcCall where
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toJSON (RpcCall j c m p) =
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object ["jsonrpc" .= j, "id" .= c, "method" .= m, "params" .= p]
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-- | A type to model the response of the Zcash RPC
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data RpcResponse r =
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MakeRpcResponse
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{ err :: Maybe RpcError
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, respId :: T.Text
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, result :: Maybe r
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}
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deriving (Show, Generic, ToJSON)
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instance (FromJSON r) => FromJSON (RpcResponse r) where
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parseJSON (Object obj) =
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MakeRpcResponse <$> obj .: "error" <*> obj .: "id" <*> obj .: "result"
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parseJSON _ = mzero
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data RpcError =
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RpcError
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{ ecode :: Double
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, emessage :: T.Text
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}
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deriving (Show, Generic, ToJSON)
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instance FromJSON RpcError where
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parseJSON =
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withObject "RpcError" $ \obj -> do
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c <- obj .: "code"
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m <- obj .: "message"
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pure $ RpcError c m
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data Payload r =
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Payload
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{ payload :: r
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}
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deriving (Show, Generic, ToJSON)
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instance (FromJSON r) => FromJSON (Payload r) where
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parseJSON (Object obj) = Payload <$> obj .: "payload"
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parseJSON _ = mzero
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-- | Type to model a (simplified) block of Zcash blockchain
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data Block =
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Block
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{ height :: Integer
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, size :: Integer
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}
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deriving (Show, Generic, ToJSON)
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instance FromJSON Block where
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parseJSON (Object obj) = Block <$> obj .: "height" <*> obj .: "size"
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parseJSON _ = mzero
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-- | Type to model a Zcash shielded transaction
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data ZcashTx =
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ZcashTx
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{ ztxid :: T.Text
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, zamount :: Double
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, zamountZat :: Integer
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, zblockheight :: Integer
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, zblocktime :: Integer
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, zchange :: Bool
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, zconfirmations :: Integer
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, zmemo :: T.Text
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}
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deriving (Show, Generic)
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instance FromJSON ZcashTx where
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parseJSON =
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withObject "ZcashTx" $ \obj -> do
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t <- obj .: "txid"
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a <- obj .: "amount"
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aZ <- obj .: "amountZat"
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bh <- obj .: "blockheight"
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bt <- obj .: "blocktime"
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c <- obj .:? "change"
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conf <- obj .: "confirmations"
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m <- obj .: "memo"
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pure $
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ZcashTx
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t
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a
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aZ
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bh
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bt
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(fromMaybe False c)
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conf
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(T.filter (/= '\NUL') $ decodeHexText m)
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instance ToJSON ZcashTx where
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toJSON (ZcashTx t a aZ bh bt c conf m) =
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object
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[ "amount" .= a
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, "amountZat" .= aZ
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, "txid" .= t
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, "blockheight" .= bh
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, "blocktime" .= bt
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, "change" .= c
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, "confirmations" .= conf
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, "memo" .= m
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]
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instance Arbitrary ZcashTx where
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arbitrary = do
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a <- arbitrary
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aZ <- arbitrary
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t <- arbitrary
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bh <- arbitrary
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bt <- arbitrary
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c <- arbitrary
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cm <- arbitrary
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ZcashTx a aZ t bh bt c cm <$> arbitrary
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-- | A type to model an address group
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data AddressGroup =
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AddressGroup
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{ agsource :: AddressSource
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, agtransparent :: [ZcashAddress]
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, agsapling :: [ZcashAddress]
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, agunified :: [ZcashAddress]
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}
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deriving (Show, Generic)
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instance FromJSON AddressGroup where
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parseJSON =
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withObject "AddressGroup" $ \obj -> do
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s <- obj .: "source"
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t <- obj .:? "transparent"
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sap <- obj .:? "sapling"
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uni <- obj .:? "unified"
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sL <- processSapling sap s
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tL <- processTransparent t s
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uL <- processUnified uni
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return $ AddressGroup s tL (concat sL) (concat uL)
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where
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processTransparent c s1 =
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case c of
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Nothing -> return []
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Just x -> do
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x' <- x .: "addresses"
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return $ map (ZcashAddress s1 [Transparent] Nothing) x'
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processSapling k s2 =
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case k of
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Nothing -> return []
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Just y -> mapM (processOneSapling s2) y
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where processOneSapling sx =
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withObject "Sapling" $ \oS -> do
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oS' <- oS .: "addresses"
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return $ map (ZcashAddress sx [Sapling] Nothing) oS'
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processUnified u =
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case u of
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Nothing -> return []
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Just z -> mapM processOneAccount z
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where processOneAccount =
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withObject "UAs" $ \uS -> do
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acct <- uS .: "account"
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uS' <- uS .: "addresses"
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mapM (processUAs acct) uS'
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where
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processUAs a =
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withObject "UAs" $ \v -> do
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addr <- v .: "address"
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p <- v .: "receiver_types"
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return $ ZcashAddress MnemonicSeed p a addr
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-- | Type for modelling the different address sources for Zcash 5.0.0
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data AddressSource
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= LegacyRandom
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| Imported
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| ImportedWatchOnly
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| KeyPool
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| LegacySeed
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| MnemonicSeed
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deriving (Read, Show, Eq, Generic, ToJSON)
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instance FromJSON AddressSource where
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parseJSON =
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withText "AddressSource" $ \case
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"legacy_random" -> return LegacyRandom
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"imported" -> return Imported
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"imported_watchonly" -> return ImportedWatchOnly
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"keypool" -> return KeyPool
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"legacy_hdseed" -> return LegacySeed
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"mnemonic_seed" -> return MnemonicSeed
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_ -> fail "Not a known address source"
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data ZcashPool
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= Transparent
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| Sprout
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| Sapling
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| Orchard
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deriving (Show, Eq, Generic, ToJSON)
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instance FromJSON ZcashPool where
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parseJSON =
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withText "ZcashPool" $ \case
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"p2pkh" -> return Transparent
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"sprout" -> return Sprout
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"sapling" -> return Sapling
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"orchard" -> return Orchard
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_ -> fail "Not a known Zcash pool"
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data ZcashAddress =
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ZcashAddress
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{ source :: AddressSource
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, pool :: [ZcashPool]
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, account :: Maybe Integer
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, addy :: T.Text
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}
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deriving (Eq)
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instance Show ZcashAddress where
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show (ZcashAddress s p i a) =
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T.unpack (T.take 8 a) ++
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"..." ++ T.unpack (T.takeEnd 8 a) ++ " Pools: " ++ show p
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-- | Helper function to turn a hex-encoded memo strings to readable text
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decodeHexText :: String -> T.Text
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decodeHexText h = E.decodeUtf8With lenientDecode $ BS.pack $ hexRead h
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where
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hexRead hexText
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| null chunk = []
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| otherwise =
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fromIntegral (read ("0x" <> chunk)) : hexRead (drop 2 hexText)
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where
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chunk = take 2 hexText
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-- | Helper function to turn a string into a hex-encoded string
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encodeHexText :: T.Text -> String
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encodeHexText t = T.unpack . toText . fromBytes $ E.encodeUtf8 t
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-- Types for the ZGo database documents
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-- | Type to model a country for the database's country list
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data Country =
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Country
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{ _id :: String
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, name :: T.Text
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, code :: T.Text
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}
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deriving (Eq, Show, Generic, ToJSON)
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parseCountryBson :: B.Document -> Maybe Country
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parseCountryBson d = do
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i <- B.lookup "_id" d
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n <- B.lookup "name" d
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c <- B.lookup "code" d
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pure $ Country (show (i :: B.ObjectId)) n c
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zToZGoTx :: ZcashTx -> ZGoTx
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zToZGoTx (ZcashTx t a aZ bh bt c conf m) = do
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let r =
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mkRegex
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".*ZGO::([0-9a-fA-F]{8}\\b-[0-9a-fA-F]{4}\\b-[0-9a-fA-F]{4}\\b-[0-9a-fA-F]{4}\\b-[0-9a-fA-F]{12})\\sReply-To:\\s(zs[a-z0-9]{76}).*"
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let p =
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mkRegex
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".*ZGOp::([0-9a-fA-F]{8}\\b-[0-9a-fA-F]{4}\\b-[0-9a-fA-F]{4}\\b-[0-9a-fA-F]{4}\\b-[0-9a-fA-F]{12}).*"
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let reg = matchAllText r (T.unpack m)
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let reg2 = matchAllText p (T.unpack m)
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if not (null reg)
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then do
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let sess = T.pack (fst $ head reg ! 1)
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let nAddy = T.pack (fst $ head reg ! 2)
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ZGoTx Nothing nAddy sess conf bt a t m
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else do
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if not (null reg2)
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then do
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let sess = T.pack (fst $ head reg2 ! 1)
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ZGoTx Nothing "" sess conf bt a t m
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else ZGoTx Nothing "" "" conf bt a t m
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-- |Type to model a price in the ZGo database
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data ZGoPrice =
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ZGoPrice
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{ _id :: String
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, currency :: T.Text
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, price :: Double
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, timestamp :: UTCTime
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}
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deriving (Eq, Show, Generic, ToJSON)
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parseZGoPrice :: B.Document -> Maybe ZGoPrice
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parseZGoPrice d = do
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i <- B.lookup "_id" d
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c <- B.lookup "currency" d
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p <- B.lookup "price" d
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t <- B.lookup "timestamp" d
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pure $ ZGoPrice (show (i :: B.ObjectId)) c p t
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-- | Type for the CoinGecko response
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newtype CoinGeckoPrices =
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CoinGeckoPrices [(T.Text, Double)]
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deriving (Eq, Show)
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instance FromJSON CoinGeckoPrices where
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parseJSON =
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withObject "CoinGeckoPrices" $ \obj -> do
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z <- obj .: "zcash"
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pure $ CoinGeckoPrices (HM.toList z)
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-- Functions for querying the ZGo database
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-- | Function to query DB for countries list
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listCountries :: Action IO [Document]
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listCountries = rest =<< find (select [] "countries")
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sendPin ::
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BS.ByteString
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-> BS.ByteString
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-> T.Text
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-> T.Text
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-> T.Text
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-> Action IO String
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sendPin nodeUser nodePwd nodeAddress addr pin = do
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let pd =
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[ Data.Aeson.String nodeAddress
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, Data.Aeson.Array
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(V.fromList
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[ object
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[ "address" .= addr
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, "amount" .= (0.00000001 :: Double)
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, "memo" .= encodeHexText ("ZGo PIN: " <> pin)
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]
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])
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]
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r <- makeZcashCall nodeUser nodePwd "z_sendmany" pd
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let sCode = getResponseStatus (r :: Response Object)
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if sCode == ok200
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then return "Pin sent!"
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else return "Pin sending failed :("
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-- | Function to create user from ZGoTx
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addUser ::
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BS.ByteString
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-> BS.ByteString
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-> Pipe
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-> T.Text
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-> T.Text
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-> Maybe ZGoTx
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-> Action IO ()
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addUser _ _ _ _ _ Nothing = return () --`debug` "addUser got Nothing"
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addUser nodeUser nodePwd p db node (Just tx) = do
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isNew <- liftIO $ isUserNew p db tx
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when isNew $ do
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let newPin = unsafePerformIO (generatePin (fromIntegral $ blocktime tx))
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_ <- sendPin nodeUser nodePwd node (address tx) newPin
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insert_
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"users"
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[ "address" =: address tx
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, "session" =: session tx
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, "blocktime" =: blocktime tx
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, "pin" =: newPin
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, "validated" =: False
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]
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-- | Function to query DB for transactions with less than 10 confirmations
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findPending :: String -> Action IO [Document]
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findPending s =
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rest =<<
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find
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(select ["session" =: s, "confirmations" =: ["$lt" =: (3 :: Integer)]] "txs")
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-- | Function to query DB for price by currency
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findPrice :: String -> Action IO (Maybe Document)
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findPrice c = findOne (select ["currency" =: c] "prices")
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-- | Function to update prices in ZGo db
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updatePrices :: CoinGeckoPrices -> [Action IO ()]
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updatePrices (CoinGeckoPrices []) = []
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updatePrices (CoinGeckoPrices x) = do
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updateOnePrice (head x) : updatePrices (CoinGeckoPrices (tail x))
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-- | Function to update one price in ZGo db
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updateOnePrice :: (T.Text, Double) -> Action IO ()
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updateOnePrice (c, v) = do
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t <- liftIO getCurrentTime
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upsert
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(select ["currency" =: c] "prices")
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["currency" =: c, "price" =: v, "timestamp" =: t]
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-- | Function to upsert ZGoTxs into the given collection
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upsertZGoTx :: T.Text -> ZGoTx -> Action IO ()
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upsertZGoTx coll t = do
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upsert (select ["txid" =: txid t] coll) (encodeZGoTxBson t)
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-- | Main API routes
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routes :: Pipe -> Config -> ScottyM ()
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routes pipe config = do
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let run = access pipe master (c_dbName config)
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let passkey = c_passkey config
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let nodeUser = c_nodeUser config
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let nodePwd = c_nodePwd config
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let nodeAddress = c_nodeAddress config
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middleware $
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cors $
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const $
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Just
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simpleCorsResourcePolicy
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{ corsRequestHeaders = ["Authorization", "Content-Type"]
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, corsMethods = "DELETE" : simpleMethods
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--, corsOrigins = Nothing
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}
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middleware $
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basicAuth
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(\u p -> return $ u == "user" && secureMemFromByteString p == passkey)
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"ZGo Backend"
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--Get list of countries for UI
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get "/api/countries" $ do
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countries <- liftIO $ run listCountries
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case countries of
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[] -> do
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status noContent204
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_ -> do
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Web.Scotty.json
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(object
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[ "message" .= ("Country data found" :: String)
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, "countries" .= toJSON (map parseCountryBson countries)
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])
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--Get Xero credentials
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get "/api/xero" $ do
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xeroConfig <- liftIO $ run findXero
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case xeroConfig of
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Nothing -> status noContent204
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Just x -> do
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let xConfig = cast' (Doc x)
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case xConfig of
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Nothing -> status noContent204
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Just c -> do
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status ok200
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Web.Scotty.json
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(object
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[ "message" .= ("Xero config found!" :: String)
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, "xeroConfig" .= toJSON (c :: Xero)
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])
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get "/api/xerotoken" $ do
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code <- param "code"
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address <- param "address"
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xeroConfig <- liftIO $ run findXero
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case xeroConfig of
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Nothing -> status noContent204
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Just x -> do
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let xConfig = cast' (Doc x)
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case xConfig of
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Nothing -> status noContent204
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Just c -> do
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res <-
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liftIO $ requestXeroToken pipe (c_dbName config) c code address
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if res
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then status ok200
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else status noContent204
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get "/api/invdata" $ do
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inv <- param "inv"
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oAddress <- param "address"
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xeroConfig <- liftIO $ run findXero
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case xeroConfig of
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Nothing -> do
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status noContent204
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text "Xero App credentials not found"
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Just x -> do
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let xConfig = cast' (Doc x)
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case xConfig of
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Nothing -> do
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status noContent204
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text "Xero App credentials corrupted"
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Just c -> do
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res <-
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liftIO $ requestXeroToken pipe (c_dbName config) c "none" oAddress
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if res
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then do
|
|
resInv <-
|
|
liftIO $ getXeroInvoice pipe (c_dbName config) inv oAddress
|
|
case resInv of
|
|
Nothing -> do
|
|
status noContent204
|
|
text "Xero invoice not found"
|
|
Just xI -> do
|
|
status ok200
|
|
Web.Scotty.json (object ["invdata" .= toJSON xI])
|
|
else status noContent204
|
|
--Get user associated with session
|
|
get "/api/user" $ do
|
|
sess <- param "session"
|
|
user <- liftIO $ run (findUser sess)
|
|
case user of
|
|
Nothing -> status noContent204
|
|
Just u ->
|
|
Web.Scotty.json
|
|
(object
|
|
[ "message" .= ("User found" :: String)
|
|
, "user" .= toJSON (parseUserBson u)
|
|
])
|
|
--Validate user, updating record
|
|
post "/api/validateuser" $ do
|
|
providedPin <- param "pin"
|
|
sess <- param "session"
|
|
user <- liftIO $ run (findUser sess)
|
|
case user of
|
|
Nothing -> status noContent204 --`debug` "No user match"
|
|
Just u -> do
|
|
let parsedUser = parseUserBson u
|
|
case parsedUser of
|
|
Nothing -> status noContent204 --`debug` "Couldn't parse user"
|
|
Just pUser -> do
|
|
let ans = upin pUser == T.pack providedPin
|
|
if ans
|
|
then do
|
|
liftIO $ run (validateUser sess)
|
|
status accepted202
|
|
else status noContent204 --`debug` ("Pins didn't match: " ++ providedPin ++ " " ++ T.unpack (upin pUser))
|
|
--Delete user
|
|
Web.Scotty.delete "/api/user/:id" $ do
|
|
userId <- param "id"
|
|
let r = mkRegex "^[a-f0-9]{24}$"
|
|
if matchTest r userId
|
|
then do
|
|
liftIO $ run (deleteUser userId)
|
|
status ok200
|
|
else status noContent204
|
|
--Get current blockheight from Zcash node
|
|
get "/api/blockheight" $ do
|
|
blockInfo <- makeZcashCall nodeUser nodePwd "getblock" ["-1"]
|
|
let content = getResponseBody blockInfo :: RpcResponse Block
|
|
if isNothing (err content)
|
|
then do
|
|
status ok200
|
|
Web.Scotty.json $ fromMaybe (Block 0 0) (result content)
|
|
else do
|
|
status internalServerError500
|
|
--Get the ZGo node's shielded address
|
|
get "/api/getaddr" $ do Web.Scotty.json (object ["addr" .= nodeAddress])
|
|
--Get owner by address
|
|
get "/api/owner" $ do
|
|
addr <- param "address"
|
|
owner <- liftIO $ run (findOwner addr)
|
|
case owner of
|
|
Nothing -> status noContent204
|
|
Just o -> do
|
|
let pOwner = cast' (Doc o)
|
|
case pOwner of
|
|
Nothing -> status internalServerError500
|
|
Just q -> do
|
|
status ok200
|
|
Web.Scotty.json
|
|
(object
|
|
[ "message" .= ("Owner found!" :: String)
|
|
, "owner" .= toJSON (q :: Owner)
|
|
])
|
|
get "/api/ownerid" $ do
|
|
id <- param "id"
|
|
owner <- liftIO $ run (findOwnerById id)
|
|
case owner of
|
|
Nothing -> status noContent204
|
|
Just o -> do
|
|
let pOwner = cast' (Doc o)
|
|
case pOwner of
|
|
Nothing -> status internalServerError500
|
|
Just q -> do
|
|
status ok200
|
|
Web.Scotty.json
|
|
(object
|
|
[ "message" .= ("Owner found!" :: String)
|
|
, "owner" .= toJSON (q :: Owner)
|
|
])
|
|
--Upsert owner to DB
|
|
post "/api/owner" $ do
|
|
o <- jsonData
|
|
let q = payload (o :: Payload Owner)
|
|
known <- liftIO $ listAddresses nodeUser nodePwd
|
|
if not (opayconf q)
|
|
then do
|
|
_ <- liftIO $ run (upsertOwner q)
|
|
status created201
|
|
else do
|
|
if oaddress q `elem` map addy known
|
|
then do
|
|
_ <- liftIO $ run (upsertOwner q)
|
|
status created201
|
|
else do
|
|
vkInfo <-
|
|
makeZcashCall
|
|
nodeUser
|
|
nodePwd
|
|
"z_importviewingkey"
|
|
[Data.Aeson.String (oviewkey q), "no"]
|
|
let content = getResponseBody vkInfo :: RpcResponse Object
|
|
if isNothing (err content)
|
|
then do
|
|
_ <- liftIO $ run (upsertOwner q)
|
|
status created201
|
|
else do
|
|
status internalServerError500
|
|
--Get items associated with the given address
|
|
get "/api/items" $ do
|
|
addr <- param "address"
|
|
items <- liftIO $ run (findItems addr)
|
|
case items of
|
|
[] -> status noContent204
|
|
_ -> do
|
|
let pItems = map (cast' . Doc) items :: [Maybe Item]
|
|
status ok200
|
|
Web.Scotty.json
|
|
(object
|
|
["message" .= ("Items found!" :: String), "items" .= toJSON pItems])
|
|
--Upsert item
|
|
post "/api/item" $ do
|
|
i <- jsonData
|
|
let q = payload (i :: Payload Item)
|
|
_ <- liftIO $ run (upsertItem q)
|
|
status created201
|
|
--Delete item
|
|
Web.Scotty.delete "/api/item/:id" $ do
|
|
oId <- param "id"
|
|
let r = mkRegex "^[a-f0-9]{24}$"
|
|
if matchTest r oId
|
|
then do
|
|
liftIO $ run (deleteItem oId)
|
|
status ok200
|
|
else status noContent204
|
|
--Get price for Zcash
|
|
get "/api/price" $ do
|
|
curr <- param "currency"
|
|
pr <- liftIO $ run (findPrice curr)
|
|
case pr of
|
|
Nothing -> do
|
|
status noContent204
|
|
Just p -> do
|
|
Web.Scotty.json
|
|
(object
|
|
[ "message" .= ("Price found!" :: String)
|
|
, "price" .= toJSON (parseZGoPrice p)
|
|
])
|
|
--Get all closed orders for the address
|
|
get "/api/allorders" $ do
|
|
addr <- param "address"
|
|
myOrders <- liftIO $ run (findAllOrders addr)
|
|
case myOrders of
|
|
[] -> status noContent204
|
|
_ -> do
|
|
let pOrders = map (cast' . Doc) myOrders :: [Maybe ZGoOrder]
|
|
status ok200
|
|
Web.Scotty.json
|
|
(object
|
|
[ "message" .= ("Orders found!" :: String)
|
|
, "orders" .= toJSON pOrders
|
|
])
|
|
--Get order by id for receipts
|
|
get "/api/order/:id" $ do
|
|
oId <- param "id"
|
|
let r = mkRegex "^[a-f0-9]{24}$"
|
|
if matchTest r oId
|
|
then do
|
|
myOrder <- liftIO $ run (findOrderById oId)
|
|
case myOrder of
|
|
Nothing -> status noContent204
|
|
Just o -> do
|
|
let o' = cast' (Doc o)
|
|
case o' of
|
|
Nothing -> status internalServerError500
|
|
Just pOrder -> do
|
|
status ok200
|
|
Web.Scotty.json
|
|
(object
|
|
[ "message" .= ("Order found!" :: String)
|
|
, "order" .= toJSON (pOrder :: ZGoOrder)
|
|
])
|
|
else status noContent204
|
|
--Get order by session
|
|
get "/api/order" $ do
|
|
sess <- param "session"
|
|
myOrder <- liftIO $ run (findOrder sess)
|
|
case myOrder of
|
|
Nothing -> status noContent204
|
|
Just o -> do
|
|
let o' = cast' (Doc o)
|
|
case o' of
|
|
Nothing -> status internalServerError500
|
|
Just pOrder -> do
|
|
status ok200
|
|
Web.Scotty.json
|
|
(object
|
|
[ "message" .= ("Order found!" :: String)
|
|
, "order" .= toJSON (pOrder :: ZGoOrder)
|
|
])
|
|
--Upsert xero order
|
|
post "/api/orderx" $ do
|
|
newOrder <- jsonData
|
|
let q = payload (newOrder :: Payload ZGoOrder)
|
|
_ <- liftIO $ run (upsertXeroOrder q)
|
|
myOrder <-
|
|
liftIO $
|
|
run (findXeroOrder (qaddress q) (qexternalInvoice q) (qshortCode q))
|
|
case myOrder of
|
|
Nothing -> status noContent204
|
|
Just o -> do
|
|
let o' = cast' (Doc o)
|
|
case o' of
|
|
Nothing -> status internalServerError500
|
|
Just pOrder -> do
|
|
status created201
|
|
Web.Scotty.json
|
|
(object
|
|
[ "message" .= ("Order found!" :: String)
|
|
, "order" .= toJSON (pOrder :: ZGoOrder)
|
|
])
|
|
-- Upsert order
|
|
post "/api/order" $ do
|
|
newOrder <- jsonData
|
|
let q = payload (newOrder :: Payload ZGoOrder)
|
|
_ <- liftIO $ run (upsertOrder q)
|
|
status created201
|
|
--Delete order
|
|
Web.Scotty.delete "/api/order/:id" $ do
|
|
oId <- param "id"
|
|
liftIO $ run (deleteOrder oId)
|
|
status ok200
|
|
|
|
-- | Make a Zcash RPC call
|
|
makeZcashCall ::
|
|
(MonadIO m, FromJSON a)
|
|
=> BS.ByteString
|
|
-> BS.ByteString
|
|
-> T.Text
|
|
-> [Data.Aeson.Value]
|
|
-> m (Response a)
|
|
makeZcashCall username password m p = do
|
|
let payload =
|
|
RpcCall {jsonrpc = "1.0", callId = "test", method = m, parameters = p}
|
|
let myRequest =
|
|
setRequestBodyJSON payload $
|
|
setRequestPort 8232 $
|
|
setRequestBasicAuth username password $
|
|
setRequestMethod "POST" defaultRequest
|
|
httpJSON myRequest
|
|
|
|
-- |Timer for repeating actions
|
|
setInterval :: Int -> IO () -> IO ()
|
|
setInterval secs func = do
|
|
forever $ threadDelay (secs * 1000000) >> func
|
|
|
|
-- |Function to query the CoinGecko API for the price of Zcash
|
|
getZcashPrices :: IO (Response CoinGeckoPrices)
|
|
getZcashPrices = do
|
|
let priceRequest =
|
|
setRequestQueryString
|
|
[("ids", Just "zcash"), ("vs_currencies", Just "usd,gbp,eur,cad,aud")] $
|
|
setRequestPort 443 $
|
|
setRequestSecure True $
|
|
setRequestHost "api.coingecko.com" $
|
|
setRequestPath "/api/v3/simple/price" defaultRequest
|
|
httpJSON priceRequest
|
|
|
|
-- | Function to update the Zcash prices in the ZGo db
|
|
checkZcashPrices :: Pipe -> T.Text -> IO ()
|
|
checkZcashPrices p db = do
|
|
q <- getZcashPrices
|
|
mapM_ (access p master db) (updatePrices (getResponseBody q))
|
|
|
|
-- | Function to search for transactions for an address
|
|
listTxs ::
|
|
BS.ByteString
|
|
-> BS.ByteString
|
|
-> T.Text
|
|
-> Integer
|
|
-> IO (Either T.Text [ZcashTx])
|
|
listTxs user pwd a confs = do
|
|
res <-
|
|
liftIO $
|
|
makeZcashCall
|
|
user
|
|
pwd
|
|
"z_listreceivedbyaddress"
|
|
[Data.Aeson.String a, Data.Aeson.Number $ Scientific.scientific confs 0]
|
|
let content = getResponseBody res :: RpcResponse [ZcashTx]
|
|
case err content of
|
|
Nothing ->
|
|
return $ Right $ filter (not . zchange) $ fromMaybe [] $ result content
|
|
Just e -> return $ Left $ "Error reading transactions: " <> emessage e
|
|
|
|
-- | Function to check the ZGo full node for new txs
|
|
scanZcash :: Config -> Pipe -> IO ()
|
|
scanZcash config pipe = do
|
|
myTxs <-
|
|
listTxs (c_nodeUser config) (c_nodePwd config) (c_nodeAddress config) 1
|
|
case myTxs of
|
|
Right txs -> do
|
|
let r =
|
|
mkRegex
|
|
".*ZGO::([0-9a-fA-F]{8}\\b-[0-9a-fA-F]{4}\\b-[0-9a-fA-F]{4}\\b-[0-9a-fA-F]{4}\\b-[0-9a-fA-F]{12})\\sReply-To:\\s(zs[a-z0-9]{76}).*"
|
|
let p =
|
|
mkRegex
|
|
".*ZGOp::([0-9a-fA-F]{8}\\b-[0-9a-fA-F]{4}\\b-[0-9a-fA-F]{4}\\b-[0-9a-fA-F]{4}\\b-[0-9a-fA-F]{12}).*"
|
|
let k = map zToZGoTx (filter (isRelevant r) txs)
|
|
mapM_ (access pipe master (c_dbName config) . upsertZGoTx "txs") k
|
|
let j = map zToZGoTx (filter (isRelevant p) txs)
|
|
mapM_ (access pipe master (c_dbName config) . upsertPayment) j
|
|
Left e -> do
|
|
putStrLn $ "Error scanning node transactions: " ++ T.unpack e
|
|
return ()
|
|
|
|
-- | Function to filter transactions
|
|
isRelevant :: Text.Regex.Regex -> ZcashTx -> Bool
|
|
isRelevant re t
|
|
| zconfirmations t < 10 && (matchTest re . T.unpack . zmemo) t = True
|
|
| otherwise = False
|
|
|
|
-- | Function to scan loaded viewing keys for payments
|
|
scanPayments :: Config -> Pipe -> IO ()
|
|
scanPayments config pipe = do
|
|
shops <- listAddresses (c_nodeUser config) (c_nodePwd config)
|
|
mapM_ (findPaidOrders config pipe) shops
|
|
where
|
|
findPaidOrders :: Config -> Pipe -> ZcashAddress -> IO ()
|
|
findPaidOrders c p z = do
|
|
paidTxs <- listTxs (c_nodeUser c) (c_nodePwd c) (addy z) 5
|
|
case paidTxs of
|
|
Right txs -> do
|
|
let r = mkRegex ".*ZGo Order::([0-9a-fA-F]{24}).*"
|
|
let k = filter (isRelevant r) txs
|
|
let j = map (getOrderId r) k
|
|
mapM_ (access p master (c_dbName config) . markOrderPaid) j
|
|
Left e -> putStrLn $ T.unpack e
|
|
getOrderId :: Text.Regex.Regex -> ZcashTx -> (String, Double)
|
|
getOrderId re t = do
|
|
let reg = matchAllText re (T.unpack $ zmemo t)
|
|
if not (null reg)
|
|
then (fst $ head reg ! 1, zamount t)
|
|
else ("", 0)
|
|
|
|
-- | RPC methods
|
|
-- | List addresses with viewing keys loaded
|
|
listAddresses :: BS.ByteString -> BS.ByteString -> IO [ZcashAddress]
|
|
listAddresses user pwd = do
|
|
response <- makeZcashCall user pwd "listaddresses" []
|
|
let rpcResp = getResponseBody response
|
|
case rpcResp of
|
|
Nothing -> fail "Couldn't parse node response"
|
|
Just res -> do
|
|
let addys = fromMaybe [] $ result res :: [AddressGroup]
|
|
let addList = concatMap getAddresses addys
|
|
return $ filter (\a -> source a == ImportedWatchOnly) addList
|
|
|
|
-- | Helper function to extract addresses from AddressGroups
|
|
getAddresses :: AddressGroup -> [ZcashAddress]
|
|
getAddresses ag = agtransparent ag <> agsapling ag <> agunified ag
|
|
|
|
-- | Function to generate users from login txs
|
|
updateLogins :: Pipe -> Config -> IO ()
|
|
updateLogins pipe config = do
|
|
let db = c_dbName config
|
|
let nodeUser = c_nodeUser config
|
|
let nodePwd = c_nodePwd config
|
|
let addr = c_nodeAddress config
|
|
results <-
|
|
access
|
|
pipe
|
|
master
|
|
db
|
|
(rest =<<
|
|
find (select ["confirmations" =: ["$lt" =: (100 :: Integer)]] "txs"))
|
|
let parsed = map (cast' . Doc) results
|
|
mapM_
|
|
(access pipe master db . ZGoBackend.addUser nodeUser nodePwd pipe db addr)
|
|
parsed
|
|
|
|
-- | Function to mark owners as paid
|
|
checkPayments :: Pipe -> T.Text -> IO ()
|
|
checkPayments pipe db = do
|
|
qPayments <-
|
|
access pipe master db (rest =<< find (select ["done" =: False] "payments"))
|
|
let parsedPayments = map (cast' . Doc) qPayments
|
|
mapM_ (payOwner pipe db) parsedPayments
|
|
|
|
payOwner :: Pipe -> T.Text -> Maybe Payment -> IO ()
|
|
payOwner p d x =
|
|
case x of
|
|
Nothing -> return ()
|
|
Just k -> do
|
|
now <- getCurrentTime
|
|
if posixSecondsToUTCTime (fromInteger (pblocktime k + pdelta k)) <= now
|
|
then markPaymentDone p d k
|
|
else markOwnerPaid p d k
|
|
where markPaymentDone :: Pipe -> T.Text -> Payment -> IO ()
|
|
markPaymentDone pipe db pmt = do
|
|
_ <-
|
|
access
|
|
pipe
|
|
master
|
|
db
|
|
(modify
|
|
(select ["_id" =: p_id pmt] "payments")
|
|
["$set" =: ["done" =: True]])
|
|
return ()
|
|
markOwnerPaid :: Pipe -> T.Text -> Payment -> IO ()
|
|
markOwnerPaid pipe db pmt = do
|
|
user <- access pipe master db (findUser $ psession pmt)
|
|
let parsedUser = parseUserBson =<< user
|
|
let zaddy = maybe "" uaddress parsedUser
|
|
owner <- access pipe master db $ findOwner zaddy
|
|
let parsedOwner = (cast' . Doc) =<< owner
|
|
let ownerId = o_id =<< parsedOwner
|
|
_ <-
|
|
access
|
|
pipe
|
|
master
|
|
db
|
|
(modify
|
|
(select ["_id" =: ownerId] "owners")
|
|
[ "$set" =:
|
|
[ "paid" =: True
|
|
, "expiration" =:
|
|
posixSecondsToUTCTime
|
|
(fromInteger (pblocktime pmt + pdelta pmt))
|
|
]
|
|
])
|
|
markPaymentDone pipe db pmt
|
|
|
|
expireOwners :: Pipe -> T.Text -> IO ()
|
|
expireOwners pipe db = do
|
|
now <- getCurrentTime
|
|
_ <-
|
|
access
|
|
pipe
|
|
master
|
|
db
|
|
(modify
|
|
(select ["expiration" =: ["$lt" =: now]] "owners")
|
|
["$set" =: ["paid" =: False]])
|
|
return ()
|
|
|
|
debug = flip trace
|